python currency rate util

#!/usr/bin/python#!coding=utf8import urllib2from TextUtil import TextUtilfrom HttpUtil import HttpUtilclass Currency:def __init__(self,cname,ccode,cusdrate):self.name=cnameself.code=ccodeself.usdrate=cusdratedef getName(self):return self.namedef getCode(self):return self.code def getUsdRate(self):return self.cusdratedef toString(self):return self.name+"/t"+self.code+"/t"+self.usdrateclass GetLatestCurrency:def __init__(self):self.currencylist=[]def __extractcurrency__(self):home_url="http://www.iccfx.com"h=urllib2.urlopen(home_url)home_data=h.read()#print home_datah.close()textUtil=TextUtil(home_data)self.cmap={}while textUtil.selectText('OPTION>','<'):value=textUtil.extractText()inf=value.find("(")ine=value.find(")",inf)name=value[:inf].strip()code=value[inf+1:ine].strip()self.cmap.update({code:name})def __convertcurrency__(self):from_c="US Dollar ".replace(" ","+")+urllib2.quote("(")+"USD"+urllib2.quote(")")for key in self.cmap:key=self.cmap.get(key).replace(" ","+")+"+"+urllib2.quote("(")+key+urllib2.quote(")")if key=="US Dollar (USD)":continueheaders={"User-Agent":"Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110221 Ubuntu/10.10 (maverick) Firefox/3.6.14","Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8","Accept-Language": "en-us;en;q=0.5","Accept-Encoding": "gzip,deflate","Accept-Charset":"ISO-8859-1,utf-8;q=0.7,*;q=0.7","Content-Type":"application/x-www-form-urlencoded"}util=HttpUtil("www.iccfx.com","POST","/convert.php","showall=&to="+key+"&amount=1&from="+from_c,headers)data=util.fetch()textUtil=TextUtil(data)if textUtil.selectText('<B>1</B> US Dollar (USD) = <B>','</B>'):value=textUtil.extractText()cur=Currency(self.cmap.get(key),key,value)self.currencylist.append(cur)def downloadCurrencyFromWeb(self):self.__extractcurrency__()self.__convertcurrency__()def toString(self):_buffer=""for key,value in self.cmap.items():_buffer+=key+"/t"+value+"/r/n"return _bufferdef toStringWithUsdRate(self):_buffer=""for cur in self.currencylist:_buffer+=cur.getName()+"/t"+cur.getCode()+"/t"+str(cur.getUsdRate())+"/r/n"return _bufferdef main():g=GetLatestCurrency()g.downloadCurrencyFromWeb()print g.toStringWithUsdRate()#print "-----------------------"#print g.toString()if __name__=="__main__":main()